Match Each Vascular Structure to Its Function or Characteristic

Match each vascular structure to its function or characteristic. Terms may apply to more than one question. Some terms may not be used.
a.arteries
i.sinusoids
b.tunica externa
j.tunica media
c.capillaries
k.capacitance vessels
d.tunica intima
l.distributing arteries
e.lumen
m.conducting arteries
f.resistance vessels
n.metarterioles
g.medium-sized veins
o.large veins
h.venules
p.arterioles
-Why is it important for the tunica intima to be smooth?

A) To make stretching easier
B) To increase recoil power
C) To help prevent aneurysms
D) To help prevent blood clots